2009 SEAT Leon 1.9L Diesel · SL09 NTG

A pattern of recurring advisories centred on the front suspension, brake hardware, and emerging structural corrosion defines this seventeen year-old Leon's MOT history. The most recent test on 24 September 2025 produced both a pass and a fail recorded against the same inspection, with a major defect flagged for the parking brake being inoperative on one side alongside an advisory for integral body structure corrosion not yet considered significantly reducing rigidity. Earlier tests tell a consistent story: in 2023 there were advisories on the nearside front and rear anti-roll bar linkage ball joints showing slight play, a minor for a severely deteriorated nearside front suspension arm ball joint dust cover, and a track rod end dust cover in similar condition, with the same pair of dust cover minors reappearing in 2022. The 2024 test added a parking brake efficiency advisory indicating adjustment or repair was required, a corroded suspension component prescribed area not yet considered excessive, and a headlamp lens product issue. Against that backdrop, the clean passes of 2020 and 2021 now look like the calm before a settled pattern of chassis, brake, and corrosion-related wear that has continued into the latest certificate. Recorded mileage of 112,864 across seventeen years equates to an annual accumulation of roughly 6,639 miles, which sits comfortably within the typical band for a car of this age and suggests steady mixed use rather than long periods of standing or unusually hard motorway mileage. There are no significant gaps in the annual testing cadence from 2019 onwards, and the mileage between recorded tests is broadly consistent with that yearly figure, indicating the odometer has been advancing in a predictable manner. Mechanically, this kind of mileage profile means the consumable wear expected at this point is largely accounted for in the advisories already seen, but the suspension components flagged in particular will have been subjected to many thousands of pothole and kerb cycles. It is also worth noting that the structural and corrosion advisories are appearing on a car being driven rather than laid up, so any rust progression is occurring under active use conditions. A prospective buyer should focus the physical inspection on the items that have appeared repeatedly on the advisories. On the underside, a torch and a steady hand are needed to check the nearside front suspension arm and track rod end ball joint boots, because the 2022 and 2023 minors flagged these as severely deteriorated; any split, missing, or perished rubber will allow dirt ingress and accelerate joint wear, and on a test drive clunks over uneven surfaces or through full-lock low-speed manoeuvres would suggest the joints themselves have worn beyond the dust covers. The anti-roll bar linkage ball joints on both the nearside front and rear should be examined for play by hand, and any knocking transmitted through the body over bumps would corroborate the slight play previously recorded. With the 2024 parking brake efficiency advisory and the 2025 major failure for the parking brake being inoperative on one side, a rolling-road style check is prudent; the lever should hold firmly on application and the vehicle should not be able to be pushed with the brake engaged. If the handbrake pulls to one side or requires excessive lever travel, expect rear brake caliper binding, stretched cables, or rear shoe adjustment to be required. The corrosion trajectory deserves particular attention because it spans both structural and suspension areas. The 2025 advisory for integral body structure corrosion and the 2024 advisory for a corroded suspension component mounting prescribed area together suggest the underbody and structural load paths are beginning to deteriorate, even though the tester judged structural rigidity not yet significantly reduced. A buyer should crouch low and examine the subframe mounting points, suspension turrets, inner sills, and the prescribed areas around the front strut tops and rear axle for any bubbling, scaling, or flaking that could be more advanced than a single advisory implies. Tap-test suspected areas, as thicker scale can sound hollow or papery compared to solid steel. The headlamp lens product advisory from 2024 should also be revisited in person, as cloudiness that is not significantly reducing light output at the time of test can progress to a fail in poor visibility conditions. Finally, given the exhaust mounting advisory from the same 2023 test, a check of all rubber hangers and the central exhaust box for security is worthwhile, as perished mounts are common on a vehicle of this age and mileage.